Scraper



Jum 26, 1923.

BfE. ROSE ET AL SCRAPER 1922 2 Sheets-Sheet 1 Filed April 7 B. E. ROSEET AL SCRAPER Filed April '7, 1922 2 Sheets-Sheet 2 Van a 17 .9

i U H .1111:

BRUCE 1E. ROSE AND GEORGE WOOLWINE, 0F MODESTO, CALIFORNIA.

SCRAPEB.

Application filed April 7, 1922. Serial No. 550,382.

To all whom it may concern:

Be it known that we, BRUCE GEORGE WooLwmE, citizens of the UnitedStates, residing at Modesto, in the county of Stanislaus and State ofCalifornia, have invented new and useful Improvements in Scrapers, ofwhich the following is a specification.

This invention relates to improvements in scrapers and particularly tothat type of scraper used in the leveling of land where the soil is tobe cut away, transported and dumped.

The principal object of this invention is to produce a scraper which maybe drawn behind a tractor or in any other convenient manner and onewhich will be simple to operate.

Another object is to devise hinged means an whereby the action ofdrawing the scraper will assist in raising the loaded scraper intotransporting position.

Another object is to provide simple means for dumping and leveling.

Another object is to provide a scraper which is simple in constructionand consequently cheap to manufacture.

Other objects and advantages will be apparent during the course of thefollowing description.

In the accompanying drawings forming a part of this specification, andin which like numerals are employed to designate like parts throughoutthe same, I

I Fig. 1 is a side elevation of our scraper in transporting position,

Fig. 2 is a top plan view of Figure 1, and

Fig. 3 is aside elevation of the scraper in dumping andlevelingposition. 7

In the accompanying drawings wherein for the purpose of illustration isshown a preferred embodiment of our invention, the numeral 5 designatesa scoop of the usual construction which is provided with skids 6 and 7.Secured to the sides of the scoop ,5' are trunnions 8 and 9. Thesetrunnions have mounted thereon forwardly projecting draw bars 11 and 12.Byreferring to Figures 1 and 3 it will be noted that these draw bars areeach provided with an upwardly inclined portion 13 and are further eachprovided with a forward projecting portion 14. The numerals 16 and 17refer to diverging draft members which are bent so as to be parallel asshown at 18, and 20 and are secured together as by spacers 19, 21 and22.

E. Ross and in Figures 1 and 3. These standards in turn support a crossbar 29 having a downwardly extending arm 31 integral therewith andprovided at its ends with levers 32 and 33. These levers 32 and '33 eachcarry a link as shown at 34 and 36 which are connected at their freeends to the portions 14 of the draw bars. A link 37 is'connected to thearm 31 and extends forwardly and is pivoted at 38 to a lever 39 pivotedat 41 on the spacer 21. This lever 39 is of the usual hand type and'isadapted to move over a segment 42 and to be held in engagement therewithas by a latch 43 operated through the medium of a link 44 and a grip 46.At 47 we have shown a rod extending between the portions 23 and 24 andsecured thereon as by U shaped members 48. This rod has an integralupstanding arm 49 to which a rope 51 is adapted to be attached and hasits free end secured to the hand lever 39. This rod 47 is provided withupstanding end portions 52 and 53 to which links 54 and 56 are secured.These links extend rearwardly and are each pivoted to a dog as shown at57 and 58. These dogs are in turn pivoted to the drawbars 11 and 12 asat 59 and are adapted to lie within the path of lugs 61 and 62secured tothe sides of the scoo 5. The usual digging tooth 63 is secured to thebottom of the scoop as shown I in Figures 1 and 3. A spring 64 isprovided the raising of the scoop from its digging to its transportingposition.

The operation of our device is as follows:

Assuming that the parts are in the position shown in Figure land it isdesired to cause the scoop to engage the ground and fill. the latch 39and handle 46 are grasped raising the latch 43 after which the lever- 39may be moved rearwardly and into its dotted line position. This rearwardmovement causes the arm 31 to move rearwardly consequently throwing thelever 32, or link 34 downwardly, This downward movement wiil cause theportion 14 of the draw bar. 11 to move nearer the ground therebydestroying the straight line pull from the tractor or other drawingpower. This downward movement will throw the parts into their dottedline positions after which forward movement of the scoop will cause thesame to fill. After the scoop has become filled by pushing forwardly onthe lever 39 the parts will be restored to their full line position.This raising action will be assisted by the tendency of the parts toreturn to a straight line draft through the hinged connection 27 andwill be further assisted by the action of the spring 66. When the loadhas been transported and it is desired to spread same, the rope 51 isgiven a pull causing tension of the spring 64 which draws the dog 57 outof contact with the lug 61 and the scoop will then move to the positionshown in Figure 3 and as the spring 64 has returned the lever 49 toits-full line position the dog 57 will be in position to contact withthe lugs 62 as shown in Figure 3. This being the dumping and spreadingposition of the scoop.

It is to be understood that the form of our invention herewith shown anddescribed is to be taken as a preferred example of the same, and thatvarious changes in the shape, size and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claims.

Having thus described our invention, We claim 1-- 1. In a device ofthe'character described,

a scoop, draw bars pivoted to said scoop,

said draw bars having oflset portions, draft means pivoted to said drawbars, at a point substantially midway of their length, said draft meanscomprislng parallel spaced portions provided with ofi'sets therein,standards secured to said draft means, segments secured to said draftmeans, a lever pivoted to said draft means and adapted to move over saidsegment, a bar extending between said standards, levers mounted on theends of said bars, links extending from said levers to the freeends ofsaid draw bars and means for rotating said rod through the movement ofsaid first mentioned lever for the purpose of moving the free end ofsaid draw bars toward said draft means.

2. In a device of the character described, a scoop, draw bars pivoted tosaid scoo said draw bars having ofiset portions, dra t means pivoted tosaid draw bars, at a point substantially midway of their length, saiddraft means comprising parallel spaced portions provided with offsetstherein, standards secured to said draft means, segments secured to saiddraft means, a lever pivoted to said draft means and adapted to move,

over said segment, a bar extending between said standards, leversmounted on the ends of said bars, links extending from said levers tothe free ends of said draw bars and means for rotating said rod throughthe movement of said first mentioned lever for the purpose of moving thefree end of said draw bars toward said draft means, a rod supported on.said draft means, said rod having upturned ends, a lever integral withsaid rod and ex-.

tending upwardly therefrom, dogs mounted on said draw bars, linksconnectin the upturned ends ofsaid rods with said dogs, and lugs mountedon said scoop and adapted to contact said dogs.

In testimony whereof we afiix our signa-' BRUCE E. ROSE. GEORGEWOOLWINE.

tures.

